I made another discovery: uboot.git also prevents USB from working after the kernel is loading ?!?

I was able to reproduce this phenomenon several times and once i logged every single step for others to inspect. The log is veeery long, so i'll make the relevent portions bold. As you can see i didn't change the kernel and there are also no changes to the uBoot environment variables (except leaving out arcNumber/mainlinelinux):

[edit:] Well, "bold" doesn't work inside a code-block and posting all that in a "teletype" might upset someone, also the post exceeds the max-size, therefore i'm uploading an attachment.